C. picked up
Feedback work through - 1. to cope with issues or feelings 2. to become noticeable.
put by - to save money in order to buy something.
pass over - 1. to fail to be promoted 2. to ignore a remark or subject.
pick up - 1. to lift something or somebody up 2. to tidy something 3. to get something 4. to collect 5. to learn 6. to notice